For x and y
When you subtract 2 from x, you will subtract 7 from y
Answer:
Step-by-step explanation:
Given that,
The area of a triangle, 
Base, 
We need to find the height of the triangle.
The formula for the area of the triangle is given by :
So, the height of the triangle is 
.
Answer:
27
Step-by-step explanation:
So first we need to plug in 5 as the variable a and -7 as the variable b
4(5)-(-7)
Next we multiply the 4 and the 5 together to get 20
4(5) = 20 or 4 x 5 = 20
20-(-7)
Now we subtract negative 7 from 20
20-(-7) = 27
This can also be written as 20 plus 7 as a mathematical rule states: two negatives make a positive. So:
20-(-7) = 20 + 7
Both of these are equivalent in every sense of the word and give us our final answer of 27
Answer:
<h3>Option 2 </h3>
angle 2 = 7x + 1 ( vertically opposite angles)
7x + 1 + 18x + 4 = 180° ( forming linear pair).
7x + 18x + 4 +1 = 180°
25x + 5 = 180°
25x = 180 - 5
25x = 175
x = 7°
angle 2 = 7(7)+ 1
= 50°
Answer:
x=23
y=12
Step-by-step explanation:
Start by making two separate equations. One for each answer it gives you. So you know you will have two different numbers, therefore you need two different variables. I'm going to use x and y. The first part of the sentence says that the sum is 35 meaning we are going to add two numbers to get 35.
x+y=35
The second part says the difference of two numbers is 11, which means you are subtracting two numbers to get 11.
x-y=11
Now you can either decide to you substitution or elimination. I prefer elimination, so thats what I will be using. To do this you need to line up both equations.
x+y=35
x-y=11 Now you can add straight down. x+x=2x; y-y=0; 35+11=46. Write out what you have left
2x+0=46 You do not have to write the zero in the equation, I did so that you could see that the y's cancell each other.
It can also look like this 2x=46. Now you need to divide by 2 to get x by itself.
x=23
To find y you take the 23 and plug it for x in one of the equations you started with. I'm going to use the (x+y=35). No matter whihc you use your answer will be the same.
23+y=35 Subtract the 23 over to get y alone.
-23 -23
y=12
